Cap or closure



(No Model.)

.A. J. ROBINSON.

GAP 0R CLOSURE.

No. 584,015. Patented June 8,1897.

witness as Lrwemiior:

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UNITED STATES PATEN rricn.

ANDREN J. ROBINSON, OF BOSTON, MASSACHUSETTS.

CAP OR CLOSURE.

SPECIFICATION forming part of Letters Patent No. 584,015, dated June 8, 1897.

Application filed June 6, 1895. Serial No. 551,864. (No model.)

To all whom it may concern..-

Be it known that I, ANDREW J. ROBINSON, of Boston, in the county of Suffolk and State of Massachusetts, have invented certain new and useful Improvements in Caps or Olosu res, of which the following is a specification.

This invention consists in a cap or closure comprising a neck or projection adapted to serve as a spout or vent or to be utilized in any manner desired and a bifurcated flange formed on said neck, whereby the neck may be secured to the article on which its use is desired, whatever said article may be, the object of the invention being to provide in one piece or part an operating device, such as a spout or outlet, and a means for attaching the same to the article on which it is used or of which it forms a part.

The invention was designed, primarily, for use in connection with collapsible tubes for holding pasty material, such as mixed paint, and made compressible, so that the contents can be squeezed out through an outlet at one end of the receptacle, my improved cap or closure providing a suitable outlet and a means for attaching the same to the collapsible body of the receptacle.

Of the accompanying drawings, forming a part of this specification, Figure 1 represents a sectional view of a cap or closure embodying my invention, it being shown in the condition in which it appears prior to its attachment to a collapsible tube or other article. Fig. 2 represents a longitudinal section of a collapsible tube provided with my improved cap. Fig. 3 represents a view similar to Fig. 2, showing the head of the neck portion of the cap cut away and said neck provided with a removable cap or cover. Fig. 4 represents a view similar to Fig. 2, showing the outer member of the bifurcated flange supplemented by an independent washer interposed between the two members.

The same letters of reference indicate the same parts in all the figures.

In the drawings, a represents a neck or projection, which as here shown is made hollow and is adapted under certain circumstances, as hereinafter described, to constitute the mouth or outlet of a collapsible tube or receptacle I). On one end of the neck a is formed a bifurcated flange composed of the main or body portion a and the branch portion (1 each of said portions being a continuous annular part. The main portion 0. projects at a suitable angle from the base of the neck a, and the branch portion prior to the attachment of the cap to the tube h or other article with which it is used, stands so that its outer surface is considerably separated from the inner surface of the adjoining portion of the body a, as shown in Fig. 1, the object being to arrange the branch flange 0. so that it maybe expanded, as shown in Figs. 2, 3, and 4, and thus caused to clampbetween itself and the outer portion of the body a an interposed article, such as the inwardly-turn ed end of the collapsible tube I), said tube being made, for example, of thin sheet metal.

In applying the cap or closure to the tube 1) I place the end of the tube against the innor side of the outer portion of the body a of the flange, the opposite end of the tube being open, and then by pressure suitably applied I expand the branch flange 6L2, forcing it outwardly until the interposed portion of the tube a is firmly clamped between the two parts of the flange, as shown in Figs. 2, 3, and it. An extremely secure and tight joint or connection is thusformed between the cap and the tube.

When the cap is used for paint-tubes, its outer end may be closed by a head (L3, which is integral with the neck a, the cap being made of a metal which can be readily cut, so that when the paint is to be used the head may be cut away, leaving the neck in the condition shown in Fig. 3, where a removable cap or cover a is shown as applied to the neck. Said cover may be applied with the cap to the tube and removed prior to the cutting away of the head and afterward replaced when it is desired to temporarily close the neck.

I do not limit myself to the use of the improved cap hereinbefore described in connection with collapsible tubes, as it is obvious that it is capable of being applied to other purposes. In other words, myinvention may be embodied in a neck or projection of any suitable form and for any desired purpose, provided at one end with a bifurcated flange adapted to be applied in the manner described to the article on which the use of the projection or neck is desired.

In Fig. 4 I show the portion a of the flange supplemented by an annular washer a which is interposed between the two parts of the flange and bears upon the outer surface of the inwardly-turned portion of the tube 1), said washer with the flange constituting a rigid head for the tube which is equal to or greater than the diameter of the body of said tube.

I am aware that it has been proposed to connect a tubular part or cap to an opening in a metallic vessel by bending the former inward and then outward to form two surfaces between which the edge of the metal around the opening is clamped, but this construction, instead of forming a bifurcated or two-part flange,constitutes simply a shouldeigfrom the outer edge of which the flange proper is bent inward and then outward. In finally turning this flange outward much of the pressure is transmitted directly to the edge of the shoulder, resulting in a liability of bending the latter away and preventing the formation of a tight joint.

By my construction of cap or closure when the interposed part is clamped between the two flanges no disturbance of the edge of the upper flange results from the expanding of the lower or branch flange, for the reason that the two are connected together inside their edges or margins instead of one flange rising from the edge of the other.

I claim- 1. A cap or closure comprising a neck or projection having at one end an outwardlyprojecting annular flange provided on its inner side with an annular branch flange adapt ed to be turned outwardly to clamp an inter posed part against the main flange, each or said flanges being of a single thickness or metal, the main flange having a cone-shaped outer surface, and the edge of the branch flange being adapted to form a should er when turned outwardly, to support the said interposed part.

2. In a cap or closure, the combination with the neck a having clampin g-fla-nges at one end and an integral head a at the other end, or the removable cap or cover a adapted to close the opening of the neck after cutting away the head a In testimony whereof I have signed my name to this specification, in the presence or two subscribing witnesses, this 2lth day or May, A. D. 1895.

ANDREW J. ROBINSON.

XVit-nesses:

GRACE A. Rornvson, EDWARD I. BAKER. 

